Powermadd supplies a good/reasonable priced throttle extension, for a brakeline extension go to your local auto parts store and get a flexible line for a grease gun and a double female brass fitting, 1/8" fittings. It's cheap, it's easy and it works great. Last one I did it cost about $8.
Stay away from the powermad throttle cable extentions. They are nothing but trouble. Minor problem is that the sleds fun like crap cuz they stick all the time. Major problem is the yard sale crashes that follow the stuck throttle. I've seen it 1st hand too many times. Bite the bullet and order an extended cable and be done with it. Slp and many others can custom make them to any length you want.